try to use python.net as the bridge.

Pythonnet.Runtime/pyiter.cs

@@ -0,0 +1,76 @@
+// ==========================================================================
+// This software is subject to the provisions of the Zope Public License,
+// Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
+// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+// WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+// FOR A PARTICULAR PURPOSE.
+// ==========================================================================
+
+using System;
+using System.Collections.Generic;
+
+namespace Python.Runtime
+{
+    /// <summary>
+    /// Represents a standard Python iterator object. See the documentation at
+    /// http://www.python.org/doc/2.4.4/api/iterator.html for details.
+    /// </summary>
+    public class PyIter : PyObject, IEnumerator<object>
+    {
+        private PyObject _current = null;
+
+        /// <summary>
+            /// PyIter Constructor
+            /// </summary>
+            ///
+            /// <remarks>
+            /// Creates a new PyIter from an existing iterator reference. Note 
+            /// that the instance assumes ownership of the object reference. 
+            /// The object reference is not checked for type-correctness. 
+            /// </remarks>
+
+            public PyIter(IntPtr ptr) : base(ptr) {}
+
+        /// <summary>
+            /// PyIter Constructor
+            /// </summary>
+            ///
+            /// <remarks>
+            /// Creates a Python iterator from an iterable. Like doing "iter(iterable)" in python.
+            /// </remarks>
+
+            public PyIter(PyObject iterable) : base() 
+        {
+            obj = Runtime.PyObject_GetIter(iterable.obj);
+                if (obj == IntPtr.Zero)
+                        throw new PythonException();
+        }
+
+        #region IEnumerator Members
+
+        public bool MoveNext()
+        {
+            IntPtr next = Runtime.PyIter_Next(obj);
+            if (next == IntPtr.Zero)
+            {
+                _current = null; //release reference
+                return false;
+            }
+            _current = new PyObject(next);
+            return true;
+        }
+
+        public void Reset()
+        {
+            //Not supported in python.
+        }
+
+        public object Current
+        {
+            get { return _current; }
+        }
+
+        #endregion
+    }
+}